Electrosurgical dispersive electrode
US4387714A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 1981 |
| Grant date | Jun 14, 1983 |
| Priority date | — |
| Expiry date | May 13, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/167
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An electrosurgical dispersive electrode is disclosed that is useful in conjunction with an electrosurgical unit to establish capacitive-coupling with the skin of a patient receiving therapeutic signals from the electrosurgical unit. The electrode includes a metallic plate electrically connectable with the electrosurgical unit to establish a return current path thereto, an insulator engaging the inner (patient) side of the metallic plate to prevent ohmic contact by the plate with the skin of the patient, and a conductive adhesive gel at the outer (patient) side of the insulator so as to be positioned between the insulator and the skin of a patient to bring the skin uniformly in contact with the gel conductor and thereby reduce the impedance, normally associated with capacitively-coupled dispersive electrodes, while retaining uniform temperature distribution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.